JPS6047282A - Digital audio reproducing system - Google Patents

Abstract

PURPOSE:To generate the order of pieces of music at random and to attain access by providing a reproducing section, a control section transmitting and storing a display data in a user's bit, a display data display section and a random generatin section. CONSTITUTION:The reproducing section 1 reproduces music or a user's bit and gives the user's bit to a control section 2'. The control section 2' transmits said bit to be displayed to a display section 3 and stores the bit in the internal memory when required. When the content of the disc is desired to be listened to in the order, the content is enabled to attain the order. When the order of music is desired to generate at random, the random music order is generated automatically by allowing the control section 2' to write the random data produced by a random generating section 4, and the accessing is attained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a digital audio playback system.

In addition to the actual music signal and frame synchronization signal, digital audio discs contain
It is called user's bit. Signals for control and display are recorded.

The user's bit is recorded in a format mixed with the music signal, and is a song number that indicates which song it is.

An index number representing a division position into which a song is divided into sections.Indicates information such as the elapsed performance time within one song and the elapsed time from the beginning of the disc. At the beginning of the recording signal, the number of songs on the disc, the starting address of the six songs expressed by the elapsed time, and the total time of the disc. A lead intra track corresponding to the table of contents of the recorded contents, and a lead out track indicating the end of the recording signal are also recorded at the end. In a digital audio playback system, the contents of these user's bits are read out from the disk during playback, and the control unit displays information such as access to the desired song and playing time.

A conventional digital audio reproduction system of this type is shown in FIG. This system consists of a playback section 1 that plays music signals and user's bits that are transmitted to the control section, and a control section 2 that converts the contents of the user's bits received from the playback section that controls this system and sends them to the display section. The display section 3 includes a display section 3 that performs one display. With this system, it is possible to listen to the songs recorded on the disc in order, and if there is a desired song, it is possible to listen to that song by inputting it into the control section.

However, if you want to randomly generate the order of the songs on the disc you are trying to listen to, 1 For example, questions and answers for learning or quizzes are recorded on the disc, and you can access the order of the songs in random order. When it becomes necessary, conventional playback systems randomly generate the order of the songs and cannot be accessed, which creates problems for such usage.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a digital audio playback system that eliminates the above-mentioned drawbacks, generates a random order of songs, and allows access.

The digital audio playback system of the present invention is as follows.

a playback section that plays back information from outside the music recorded on a digital audio disk and user's bits; a control section that sends display data in the user's bit information and stores a part of the information; The present invention is characterized in that it includes a display section that displays data, and a random generation section that provides random data for reproducing the music signals in a random order to the control section.

FIG. 2 shows an embodiment of a digital audio reproduction system according to the present invention. The reproduction section 1 reproduces music signals and user's bits, and the reproduced user's bits are sent to the control section 2'. Control section 2
'' indicates that the user's bits that should be displayed among the reproduced user's bits are sent to the display section 3 and are displayed, and those that need to be remembered, such as the number of songs, are stored in the internal memory. Therefore, if you want to listen to the contents of a disc in a determined order, you can use this internal information.

On the other hand, since a random generation section 4 is connected to the control section 2', if you want to randomly generate the order of the songs on the disc and listen to it, the random data generated by the random generation section 4 can be sent to the control section 2'. By writing, a random song order can be automatically generated and accessed.

The random generation section does not require a very large circuit in terms of hardware, and can also be constructed from software such as the microcomputer used in the control section.

The configuration of the present invention has the advantage that it becomes possible to randomly generate and access the order of songs on the disc.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a conventional digital audio playback system, and FIG. 2 is a block diagram showing an embodiment of the digital audio playback system of the present invention. 1...Reproducing section, 2.2'...Control section, 3...Display section, 4...Random generation section.

Claims (1)

[Scope of Claims] A playback section that plays back music signals and user's pits recorded on a Digimel audio disc, and a control section that sends out display data in the user's bit information and stores part of the information. and a display unit that displays the display data. A digital audio playback system comprising: a random generation section that provides random data for playing back the music signals in a random order to the control section.